GBrain Tools

GBrain Tools holds the logins for accounts like Gmail, GitHub, Notion and Stripe so Claude, ChatGPT, Claude Code, Codex and Cursor can use them without ever seeing a password, with per-app permission levels, daily limits and an activity log.

Why it matters

For anyone connecting several AI assistants to work accounts. Instead of pasting API keys into each tool, one service holds the keys and every AI action is permissioned and logged.

Highlights

• Connect an account once; Claude and ChatGPT reach it over MCP, and Claude Code, Codex and Cursor use it from the command line.
• The keys stay with GBrain: an AI gets the results of calls it's allowed to make, not the credentials.
• Set a permission level per app, an end date per AI, a daily limit per tool, and switch any AI off with one press.
• Every action, allowed or refused, goes on one activity log.
• Adds a command line for every connected app, including ones that never had one.

Taken from the project's own README, docs or launch page. Claims about speed or accuracy are the maker's unless stated otherwise.

Worth knowing: You're trusting one service with credentials to many accounts; read its security and privacy pages before connecting sensitive ones.

Quick facts

Links

• Official site: https://gbrain.io/tools
• Docs: https://gbrain.io/docs

Related ranking

See how established tools compare in Best AI Agents That Do Tasks for You. New releases aren't scored until we review them against the rubric.

Checked 2026-10-18 from the tool's own pages. Prices and star counts change, so confirm on the official site. Listing here is not a ranking or an endorsement.